Here Paul speaks of the Roman believers' obedience as if it were a person who could go to people. AT: "For everyone has heard how you obey Jesus" (See: [[rc://en/ta/man/translate/figs-personification]])
The phrase "crush under your feet" refers to complete victory over an enemy. Here Paul speaks of the victory over Satan as if the Roman believers were trampling an enemy under their feet. AT: "Soon God will give you peace and complete victory over Satan" (See: [[rc://en/ta/man/translate/figs-metaphor]])